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(No Model.) 7 Sheets-Sheet 1. G. GUTSMUTHS.

BRUSH MAKING MACHINE.

No, 450,863. Patented Apr. 21, 1891.

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No. 450,863. Patented Apr. 21,1891.

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7 Sheets-Sheet 7. C. GUTSMUTHS.

BRUSH MAKING MACHINE.

No. 450,863. Patented Apr. 21, 1891.

Nrrnn STATES PATENT OFFICE.

CARL GUTSMUTHS, OF EUTRITZSGH, NEAR LEIPSIC, GERMANY.

BRUSH-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 450,863, dated April 21, 1891.

Application filed November '7, 1887. Serial No. 254,507. (No model.) Patented in Germany May 7,1886,N0. 40,285, and in Austria-HungaryNovember 16, 1386, No. 29,399, and No. 58,099.

To aZZ whom it may concern:

Be it known that I, CARL GU'rsMU'rHs, engineer, of Eutrit-zsch, near Leipsic, in the Kingdom of Saxony and German Empire, have inventeda new and useful Improvement in Brush-Making Machinery, of which the following 1s a specification, reference being had thereln to the accompanying drawings, no patents being obtained by me anywhere for thls invention save in Austria-Hungary Nos. 29,399 and 58,099, dated November 16, 1886, and Germany, No. 40,285, dated May 7, 1886.

This invention relates to a machine by means of which the tufts or bunches of bristles or hairs used in the manufacture of a brush may be drawn by means of bindingwlre into the holes or perforations provided 1n the stock of the brush and adequately secured in place.

In order that this invention may be readily understood, I will proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a front view of the machine. Fig. 2 is a side view. Fig. 3 is a plan view with the table removed. Fig. 4: is a vertical section on lineI I of Fig. 1. Fig. a is a perspective view of the machine with parts broken away and parts omitted. Fig. 5 is a detail side view of the lever for drawing tight the wire loop to draw in the bunch of bristles and the operating-cam. Fig. 0 is a front and Fig. 7 a plan viewof the same. Fig. 8 is a vertical section of the saddle for supporting the brush-blank and the needle-tube with the needle-operating slide, the groove for the passage of the wire being formed in the needle-tube. Fig. 9 is a horizontal section of the same. Fig. 10 is a plan view of the needle-operating slide in section with the operating-crank in plan. Fig. 11 is a detail side view of the clutch-controlling mechanism. Fig. 2 is a front view of the clutch with said mechanism. Fig. 13 is a plan view of the same. Fig. 14: is a side view of the needle. Fig. 15 is a vertical section, and Fig. 16 is a cross section of the same. Fig. 17 is a detail front view showing the needle-operating slide, its crank-arm, and the shaft therefor with the wire-drawing lever and cam. Fig. 18 is a plan view of the same, showing also the clip for gripping the wire as it is tightened about the bristles. Fig. 19 is a side view. Fig. 20 is a detail view of the clutch. Fig. 21 is a detail of the saddle in section, the needle and operating mechanism in side elevation, and the brush-blank in position, the loop being in dotted lines. Figs. 22, 23, and 2 1 illustrate the succession of steps in the formation of the loop and the drawing in of the bristles.

Figs. 25 and 26 are enlarged detail views of the same.

Referring first to the general views of the machine, Figs. 1, 2, 1:, and i, a saddle G is supported upon the table 10, which in turn is sustained by any suitable frame-work 15. This saddle is preferably rounded on its upper end, and it carries a needle-tube H arranged centrally thereof and projecting above the rounded end. On this projection and saddle the blanks to which the bristles are to be attached are supported, the needletube being adapted to the openings in the brushblank, as in Figs. 21 to 26.

The needle N which carries the wire reciprocates vertically through the table and its tube and feeds upward suflicient wire at each stroke to form the loop of wire, as indicated in Fig. 25. For this purpose it has an open slit or notch u" in its upper end, Figs. 14 and 15, instead of the ordinary eye. The wire extends through this notch, as in Fig. 25, to the bunch of bristles already drawn in at X and when the needle rises the bottom of the slit bears against the wire and forces it upward a sufficient distance to provide wire for a new loop, and upon the descent of the needle the wire thus forced up is left behind and formed into a loop, as hereinafter described, and through this loop a bunch of bristles is in; serted with any instrument or shuttle designed for the purpose.

The operation thus far described is shown in Fig. The wire may extend vertically through a groove in-the side of the needle, as in Figs. 141 and 15, or through a groove in the needle-tube, as in Figs. 8 and 9. The needle is carried by a holder S 011 a slide S',n1ovable verticallyin ways 16 on the frame. The slide S is in turn moved by a crank-arm K, which is on a rotary shaft d, the crank-pin entering a horizontal groove 011 the face of the slide. As in Figs. 2 and e, the wire D passes from a reel D'on the table, over a sheave L, down under the table, through a suitable opening, through a gripping friction-clip 2, hereinafter described, under a sheave B, journaled on the frame, Figs. 4, 4, 1S, and 19, thence over a sheave L, journaled in the bracket 17 of the frame, thence under a sheave A journaled in the end of the arm w ar the wire-tightening bell-crank lever TV. It then passes directly to the needle. It will be clearly seen that after the loop is formed, as in Fig. 25, and the bunch of bristles is inserted, the wire must be tightened to draw the middle portions of the bristles into the openings of the blanks, as in Fig. 26, which will cause the ends to project, and the wire must be tightened sufficiently to securely bind the bristles in this position. For doing this, and also for drawing upon the wire sufficiently to form a loop, the crank-arm of lever XV must be thrown down at the proper time, pressing upon the wire and drawing it down first to form the loop to receive the bristles, and then to tighten about the same. During this tightening action, also, the wire must be held firmly at a point between the reel D and the tightening-arm V to prevent drawing more wire from the reel, and the gripping-clip r: is provided for this purpose; and, supposing this part is performing its function properly to grip the wire, it willbe readily seen that downward movement of the arm will draw the wire down along the needle,binding it at the loop about the bristles. The bell-crank \V is journaled in a bracket 18 depending from beneath the table, Figs. 2, 5, 6, and 7, and it is operated after thedescent of the needlebya peripheral cam-groove C in a cam C, fixed on the rotary shaft d. The action of the grippingclip a must be intermittent-that is, it must hold the wire while the tightening-arm W is moving down to draw in and bind the bristles, and it must release the wire when the needle rises to force up a new length for the next loop. It is composed of two sections hinged together, Figs. 3, 4:, and 18, between which the wire passes through a suitable channel. The outer movable section is provided with a spring-arm .2, which extends into the path of the cam flange K, extending partially around the cam 0, so that during part of the revolution of the cam the flange K will bear upon the spring-arm e and apply pressure to the clip for gripping the wire. The flange is located in relation to the cam-groove O, and these parts are relatively timed in order that the grip will act while the arm WV is drawing tight the wire. During the remainder of the revolution the grip is released, as the flange does not extend all the way'aroupd. The shaft 61 is driven from the shaft a by a gear B on shaft d, and a pinion A on the shaft a, so that a complete revolution of the shaft a imparts a half-revolution to the shaft cl. The crank-lever W is operated to draw upon the wire at each movement of the shaft d, the

firstmovement forming the loop. for the reception of the bristles, and the further downward movement of the arm (V tightening and binding the wire to the bristles. The movement of the shaft to is controlled by a clutch consisting of a toothed jaw 0, arranged to slide longitudinally on the shaft, and under pressure of the spring-f and a jaw b, freely revoluble on the shaft a, aud having a pulley I) combined therewith. This jaw is driven from a pulley 2 on a shaft 3, which is operated from a treadle by pitman 4, connected with the crank 3. The sliding jaw C of the clutch has a wedge-shaped projection n extending partially around its periphery, and extending near the path of this projection there is a lever r pivoted to the frame at 11, Figs. 1, 2, 4, 11, 12, and 13, which likewise has aprojection p, and this is in the path of the projection it. Obviously when the revolution of the shaft a brings the projection it against the projection 19 the clutch-j aw 0 will be shifted and the revolution will cease until the lever r is operated and the holding projection 19 removed from the projection 17.. The lever r is operated quickly to release the sliding jaw and to immediately return to operative position to push it back when the lug 01 comes around. The shaft thus makes one revolution at a time, and is automatically stopped at the end of each rotation. Each revolution, as before stated, revolves the sh aft cl one-half. The first half revolution forms the loop, after which the movement ceases until the bristles are placed therein. Then the lever r is withdrawn a second time and the crank-lever WV is again operated by the completion of the revolution of the'shaft (I, and the bristles are thus bound by the wire, after which there is another pause in the movement while the brush-blank is being shifted. Thelever r is operated from a treadle 1-1 on the rod 2', which has a pivoted latchpoint 8, arranged to engage the under sideof the lever B and raise it. The latch s has pivotal movement only upward and for this rising action itis rigid. The lever B is connected through a rod S with an arm 0" of a crank-1ever pivoted on a rod held in hangers beneath the table-top, and the other arm r of this 1ever is connected by a link i; with the lever 7' The lever is held in normal position by a spring f, which draws up the rod S. In operating these parts the treadle-arm h is depressed, raising the arm h and causing the latch s to operate, the lever Ragainst the tension of the spring f and withdraw the projection p of the lever r allowing the sliding jaw of the clutch to engage with the revolving portion 1) to rotate the shaft to. The lever r and its operating connections return at once to normal position under the action of the spring f, and the clutch is disengaged when the shaft or. completes its revolution. The treadle H is under tension of a spring 7L2, Fig. 2. A spring ac, Fig. 8, may be provided, attached to the needle-tube and extending through the same to bear upon the wire and apply a tension to the same.

I claim as my invention- 1. In combination, the saddle G, having the needle-tube projecting therefrom to receive the brush-blanks, the needle arranged to reciprocate through the saddle and carry the Wire, and means for drawing the wire backward along the needle, substantially as described.

2. In combination, the saddle G to receive the brush-blanks, the reciprocating needle having a slit to, open at its upper end to engage and move the Wire upward, and means for drawing the wire backward along the needle, substantially as described.

In combination, the needle for drawing the Wire, with operating means, the crankarm \V for retracting the wire, the cam for operating said arm,the clip located at apoint between the retracting-arm W' and the reel for holding the wire,and the cam for positively operating said clip While the retracting-arm is drawing the wire back, substantially as described.

t. In combination, the needle, the crankarm \V and operating means therefor, the shaft a, and the shaft (1-, geared thereto for communicating motion to said operating means, the clutch b c on the shaft a, and the operating means consisting of the lever T the treadle H, and suitable operating connections from the treadle to the lever, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

CARL GUTSMUTHS.

Witnesses:

GEORG- SARTMANN,

MORITZ BAUERMANN. 

